| 摘要 |
Dental instruments and appliances are manufactured from a superelastic alloy, which includes atoms from the group IVB and group VB transition metals and oxygen so as to exhibit superior strength and flexibility. The metal alloys are cold worked to increase the tensile strength of the dental instruments and appliances. Cold working the metal also increases the flexibility of the dental instruments and appliances and prevents work hardening. Dental instruments made from the superelastic alloy exhibit higher strength, flexibility, resistance to work hardening, and biocompatibility compared to dental instruments made from nickel-titanium alloys. In one particular example a super-elastic endodontic file is described.
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